Alert archive / Illinois / Flash Flood Warnings in 1995

Flash Flood Warning 19, NWS St. Louis, MO

May 17, 1995Marion County, Illinois

NWS St. Louis, MO issued this flash flood warning at May 17, 1995, 11:56 PM CDT for Marion County, Illinois. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: May 17, 1995, 11:56 PM CDT (04:56 UTC)
Expired: May 18, 1995, 4:00 AM CDT
In force: 4 hr
Issued by: NWS St. Louis, MO
Area: Whole counties

County Marion County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 4.9 hours before the alert went out and 169 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 484 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 293 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSTL 180459
FFWSTL
ILC005-027-049-051-081-121-145-189-013-083-119-133-157-163-MOC071-
099-183-189-186-510-157-180900-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1156 PM CDT WED MAY 17 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  400 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...BOND COUNTY...CLINTON COUNTY...EFFINGHAM COUNTY
   ...FAYETTE COUNTY...JEFFERSON COUNTY...MARION COUNTY...PERRY COUNTY
   ...WASHINGTON COUNTY
 
IN SOUTHWEST ILLINOIS
 
   ...CALHOUN COUNTY...JERSEY COUNTY...MADISON COUNTY
   ...MONROE COUNTY...RANDOLPH COUNTY...ST CLAIR COUNTY
 
 
IN EAST CENTRAL MISSOURI
 
   ...FRANKLIN COUNTY...JEFFERSON COUNTY...ST CHARLES COUNTY
   ...ST LOUIS COUNTY...STE GENEVIEVE COUNTY
 
  AND THE INDEPENDENT CITY OF
 
   ...ST LOUIS CITY
 
IN SOUTHEAST MISSOURI
 
   ...PERRY COUNTY
 
AT 1155 PM...THUNDERSTORMS WITH HEAVY RAIN CONTINUED TO DOT EAST CENTRAL
MISSOURI AND SOUTHWEST ILLINOIS. ALTHOUGH THE WIDESPREAD RAINS OF
WEDNESDAY APPEAR TO BE SUBSIDING...THE POCKETS OF HEAVY RAIN WILL
CONTINUE THE FLASH FLOOD THREAT INTO THE EARLY MORNING HOURS.
 
ALTHOUGH THE RAINS MAY COME TO AN END OVER THE NEXT FEW HOURS...FLOODING
PROBLEMS WILL PERSIST IN MANY AREAS THROUGHOUT THE NIGHT.  MOTORISTS AND
THOSE LIVING IN FLOOD PRONE AREAS SHOULD REMAIN ALERT!!!
 
BE ESPECIALLY CAUTIOUS TONIGHT...SINCE DARKNESS OFTEN OBSCURES THE
DANGERS OF FLOODING.  NEVER DRIVE OR WALK INTO FLOOD WATER.
 
IF YOU LIVE NEAR A SMALL STREAM OR OTHER LOW LYING FLOOD-
PRONE AREA...BE PREPARED TO MOVE TO HIGHER GROUND QUICKLY.
YOUR LIFE MAY DEPEND ON IT.
 
TRUETT/METZE

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 17, 11:56 PM CDT	Flash Flood Warning	LSX	Clinton, Madison, Monroe, Randolph, Saint Clair, Washington	4 hr
May 17, 11:56 PM CDT	Flash Flood Warning	LSX	Jefferson, Perry	4 hr
May 17, 11:56 PM CDT	Flash Flood Warning	LSX	Effingham, Fayette	4 hr
May 17, 11:56 PM CDT	Flash Flood Warning	LSX	Bond	4 hr
May 17, 11:56 PM CDT	Flash Flood Warning	LSX	Calhoun, Jersey	4 hr
May 18, 12:19 PM CDT	Tornado Warning	LSX	Monroe	41 min
May 18, 12:38 PM CDT	Tornado Warning	LSX	Saint Clair	52 min
May 18, 12:54 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	51 min
May 18, 1:03 PM CDT	Tornado Warning	LSX	Washington	27 min
May 18, 1:12 PM CDT	Tornado Warning	LSX	Clinton	42 min
May 18, 1:19 PM CDT	Tornado Warning	LSX	Randolph	35 min
May 18, 1:22 PM CDT	Tornado Warning	LSX	Washington	32 min
May 18, 1:35 PM CDT	Tornado Warning	LSX	Jefferson, Marion	40 min
May 18, 1:40 PM CDT	Severe Thunderstorm Warning	LSX	Perry	24 min
May 18, 2:02 PM CDT	Tornado Warning	LSX	Fayette	27 min
May 18, 2:02 PM CDT	Tornado Warning	LSX	Effingham	43 min

Nearby

Flash Flood Warnings in Illinois, 1995 Every flash flood warning in 1995

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.